//
//  WBNetworkManager+Extension.swift
//  ZZY微博
//
//  Created by 庄壮勇 on 2018/1/23.
//  Copyright © 2018年 Personal. All rights reserved.
//

import Foundation

// MARK: - 封装新浪微博的网络请求方法
extension WBNetworkManager {
    
    /// 加载微博数据字典数组
    ///
     ///   - since_id: 返回ID比since_id大的微博
    ///   - max_id: 返回ID小于或等于max_id的微博
    /// - Parameter completion: 完成回调: 微博字典数组/是否成功!
    func statusList(since_id: Int64 = 0,max_id: Int64 = 0,completion: @escaping (_ list: [[String: Any]]?, _ isSuccess: Bool)->()) {
        let urlString = "https://api.weibo.com/2/statuses/home_timeline.json"
        let params = ["since_id": since_id,"max_id": (max_id > 0 ? max_id - 1 : 0)];
               tokenRequest(URLString: urlString, parameters: params) { (json, isSuccess) in
                // print(json ?? "")
                
                // 从json 中获取 statuses 字典数组
                // 如果 as? 失败， result = nil
                // 提示: 服务器返回的字典数组，就是按照时间的倒序的
                let result = (json as? [String: Any])?["statuses"] as? [[String : Any]]
                
                completion(result, isSuccess)
                
        }
    }
    
    /// 返回微博的未读数量 - 定时刷新，不需要提示是否失败!
    func unreadCount(completion : @escaping (_ count: Int)->())  {
        guard let uid = userAccount.uid else {
            return
        }
        
        let urlString = "https://rm.api.weibo.com/2/remind/unread_count.json"
        let params = ["uid": uid]
        tokenRequest(URLString: urlString, parameters: params) { (json, isSuccess) in
            let dict = json as? [String: Any]
            let count = dict?["status"] as?Int
            completion(count ?? 0)
        }
    }
}

// MARK: - 用户信息
extension WBNetworkManager {
    
    /// 加载当前用户信息 - 用户登录后立即执行
    func loadUserInfo(completion: @escaping (_ dict: [String: Any])->()){
        guard let uid = userAccount.uid else {
            return
        }
        let urlString = "https://api.weibo.com/2/users/show.json"
        let params = ["uid": uid]
        
        // 发起网络请求
        tokenRequest(URLString: urlString, parameters: params) { (json, isSuccess) in
            completion(json as? [String : Any] ?? [:])
        }
        
        
    }
    
}

// MARK - OAuth相关方法
extension WBNetworkManager {
    
    /// 提问: 网络请求异步到底应该返回什么?
    /// 加载 AccessToken
    ///
    /// - Parameters:
    ///   - code: 授权码
    ///   - completion: 完成回调[是否成功]
    func loadAccessToken(code: String, completion: @escaping (_ isSuccess: Bool)->()) {
        let urlString = "https://api.weibo.com/oauth2/access_token"
        let params = ["client_id": WBAppKey,
                      "client_secret": WBAppSecret,
                      "grant_type":"authorization_code",
                      "code": code,
                      "redirect_uri": WBRedirectURI,]
        
        // 发起网络请求
        request(method: .POST, URLString: urlString, parameters: params) { (json, isSuccess) in
            //print(json)
            
            // 如果请求失败，对用户账户数据不会有任何影响
            // 直接用字典设置 userAccount 的属性
            self.userAccount.yy_modelSet(with: (json as? [String : Any]) ?? [:])
            print(self.userAccount)
            
            // 加载当前用户信息
            self.loadUserInfo(completion: { (dict) in
                // 使用用户信息字典设置用户账户信息(昵称和头像地址)
                self.userAccount.yy_modelSet(with: dict)
                
                print(self.userAccount)
                // 保存模型
                self.userAccount.saveAccount()
                // 用户信息加载完成后，完成回调
                completion(isSuccess)
            })
            
            
        }
    }
}
